Paper tracing the history of the sewerage system in Baltimore, Maryland, from the city's founding in 1729 to 1916. Systems of sewage disposal used included cesspools, private drains, outfall sewers, and sewage treatment plants. Includes photographs and other illustrations. This paper was prepared as part of Lopata's initiation into Phi Mu, an engineering honor society. Topic: Sewage disposal -- Maryland -- Baltimore -- History.